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Column k = 4 of triangular array in A165241.
1

%I #22 Mar 31 2020 17:24:24

%S 1,15,105,532,2241,8361,28610,91740,279624,818272,2315712,6372480,

%T 17123840,45082368,116596224,296879104,745543680,1849344000,

%U 4536958976,11020075008,26526547968,63329075200,150057123840

%N Column k = 4 of triangular array in A165241.

%H Vincenzo Librandi, <a href="/A202493/b202493.txt">Table of n, a(n) for n = 0..1000</a>

%H <a href="/index/Rec#order_05">Index entries for linear recurrences with constant coefficients</a>, signature (10,-40,80,-80,32).

%F a(n) = A165241(n+4,4).

%F G.f.: (1+5x-5x^2+2x^3+x^4-x^5)/(1-2x)^5.

%F a(n) = 2^n*(n+4)*(27*n^3+126*n^2+169*n+62)/256 for n>0. - _Bruno Berselli_, Dec 21 2011

%Y Cf. A011782, A084858, A165241, A202480, A202481.

%K nonn,easy

%O 0,2

%A _Philippe Deléham_, Dec 20 2011

%E a(12) added by _Bruno Berselli_, Dec 21 2011